GB673887A - Improvements in washing, dry cleaning or similar machines - Google Patents

Abstract

<PICT:0673887/III/1> <PICT:0673887/III/2> In a dry-cleaning machine comprising an inner horizontal cylinder A rotating within an outer cylindrical casing B, and provided at intervals around its periphery with apertures a, perforated lifters C, and scoops D, the width of the lifters is greater than that of the apertures, and one or both edges a1 of each aperture, according as to whether rotation of the cylinder is unidirectional or is first in one direction and then in the other, is/are curved inwardly to assist the entry of liquid into the lifter and to assist in holding it therein until it has been raised to the desired level, when it is discharged on to the load in the cylinder. The apertures a extend for a part or the whole of the length of the cylinder. In the example shown in Fig. 1, each scoop D is in the form of a V-shaped plate whose sides may be flat but are preferably slightly concave. The lifters C may be truncated, Fig. 2 (not shown), the truncated surface being perforated or not. In the example shown in Fig. 3, the cylinder A rotates in one direction only (indicated by an arrow 5) and the lifters C are of angular shape and perforated on their leading sides, the other side being preferably though not necessarily imperforate. The leading edge a1 of each aperture a is curved inwardly and the scoop D is formed by a curved plate extending outwardly from the rear edge of the aperture. In a modification, Fig. 4 (not shown), the lifters and scoops are similar to those in Fig. 3, except that each lifter C is truncated and the two sides are of equal length. The Provisional Specification describes also a combined scoop and lifter consisting of a flat plate projecting radially through the aperture towards the centre of the cylinder, the outer edge of the plate terminating in two curved plates which form a V with its apex in or near the plane of the longitudinal edges of the aperture Specification 640,974 is referred to.